Lock.



' w. AJHYLE.

LOCK. APPUCATION FILED MAY 10, 1915 1,174,253. Pate'nted Mar.7, 1916.

IIIIIIIIIII INVENTDR z a zo by M ATTEIRNEYE;

WILLIAM A. .HYLE, oF BUFFALQ'JNEWVYORK, ASSIGNOR ,ro sA E'rY Frnsr nocK COMPANY, oF BUFFALo, NFwYoRK, A CORPORATION OFNEWYOBK.

To all whom it may concern:

Be it known that L'VVILLIAM A.- HYLE,

a citizen of the United States, residing at Buifalo, in the county of Erie and State of New York, have invented new and useful Improvements in Locks, of which the following issp e-cificationl 1 This invention relates to a lock which is more particularly designed for holding window sashes in position but which may also be used for. a varietyof, other purposes wherea. small and compact lock is required which can be quickly shifted into an open or closed position without} the use ofa key.

It is the object of this invention tofprovide a lock of this character which is simple and durable in construction, eflicientinvop eration and composed of few partswhich can beproduced and assembled at comparatively lowv cost. 7

In the 1 accompanying .drawings z H i 1 is a rear elevation of, myim'proved lock l 3, 3 projecting outwardly from the rear;

showing the rear wallthereofremoved and the operating shaft inrsection and the parts shifted in such a position that the locking bolt is shot or initsoperative positionj Fig. 2 is'a similar view' .showing;theparts shifted in a position ,in'which the locking bolt isin its retracted. 0r- ;open position;

Fig. 3 is a vertical transverse sectiontaken inline 8 3, Fig. 1, but showinglthe rear Wall of the casing in place andethe lock-asa whole mounted on a support- Fig. 4'isa horizontal section taken in line H,,Fig. 2 and showing the rear wall in place.

Similar characters of reference, indicate corresponding parts throughout the several views. Y o .-Although theca'sing of this'lock may be variously constructed the form. shown in the drawings is preferred. and as there shown in the same vcomprises a body portion having an upright. front wall 1, upper and lower longitudinal guideways 2,, 2 projecting inwardly from" the, upper and lower edges of the front wall,; two fastening webs edges of the guideways and arrangedpar-r. allel with the front wall, two: marginal flanges 4:, .4: arranged lengthwise at the outer j edges of-the fastening webs and pr'ojecting' inwardly or rearwardly therefrom and two transverse guidefianges 5, 5 arrangedvere tically "at the front'and rearends'of the front wall, guideways, fastening webs and p 1 Specification of Letters Patent.

Patented. Mal 7, 1916.

Application filed May 10, 1915. Serial No. we;

marginal flanges} and having their] rear edges flush with the rear edges of-the marglnal fianges. The hollow space .or chamber within this body is closed on itsrear side by means of a rearfwallfi which is ar ranged within the j -guidei flanges and the marginal flanges'Land-be'ars with the upper and "lowerIp'arts of its-inner side against i the fastening webs IlVh'en this look isas- 1 I v I I 0 n V I rear side of'the casingbearing against the sembled the 'samegmay be'secured with the surface'adapted "to receivethe lockby means of a plurality of screws '1 or the like passing through corresponding]openings 8, 9 formed inthe fastening'websand the upper andlower parts of the rear wall and engaging with :the support 10 which is adapted .to receive theflock, as shown in Fig.3. The body of this casing is preferably stamped; from a single sheet of metal ofis; also Y W ithin-lthe. coml artment or, chamberof,v

the casing is=arrangeda-yoke llo whichis -although the, same maybecast or otherwiseformed 1f 'desiredfandthe rear wall there- I slidable. in lithe casing jand guided during 1 this movementby engagement ofoits upper and lower longitudinal guide edges with the inner sides of the guidewaysfl, 2 on the upper and lower parts of the casing body, I

as shown in Figs. 1,2 andf3wjAt its vertical front end the sliding yoke is provided with a forwardly projecting locking bolt 12 whichis arranged in 'a guide opening 13 formed in the adjacent frontjguideflange or wall 0f the: casing, and :at its rear end the yokelis provided with a rearwardly projecting guide shank 14 which is arranged in a'guide opening 15 formed in the rear guide fiangegorflwall of the casing. This yoke and the locking bolt and, guide shank are preferably. constructed in asingle piece bystampingth'esame from a sheet of metal but if desired thesame may be otherwise constructed.- In the preferred form of this 7 yoke its locking bolt and guide shank' are' arranged centrally or midway of the height 2 t Y of the yoke and the'bolt and shank are preferably. made of} difierent widths, for .instance the locking ,bolt inay be somewhat narrower than the guide. shank, as shown in Figs. 1 and 1 2,v and c the, guide, openings which receive these members'aremade of corresponding: dimensions. By "this means it is impossible to assernble the am with its bolt andshank in the body of the casing in an improper mannerbecaiuse, the shank.

will not enter'th'e guideway of the locking bolt, thereby enabling these parts to be assembled quickly and properly and reducing the cost of the same accordingly.

In its central part the 'yoke is provided with an opening 16 whichis constructed to form front and rear thrust shoulders 17 1.8 which" are arrangedvertically or perpendicularly to the line of travel of the yoke. At

the corresponding ends of the thrust shoulders, preferably adjacent to the lower ends thereof, the opening '16 is Constructed to form a stop shoulder '1-9 which isv of curved concave form.- Within this opening of the {yoke is arranged a rotatable eccentric 20 which is pivotallyimounted on the casing and whereby the yoke isf'shifted lengthwise in the casing. Thiseccentric is preferably of circular form. on its peripheryand of a diameter equal to the distance between the front and rear thrustshoulders sothat upon turning the eccentric'in one direction orjthe other the highest part. of its face will engage alternately with; these thrust shoulders and move the yoke sothat inone v extreme position of thesame the flocking bolt will be shot "or projected'into its operatiye position, as shown in- Fig. 1,. while :in the other extreme position of the same-the lockingbolt will be retracted into its inoperative position, as shown in Fig. 2. vThe stop shoulder is preferably so located relativelyto' Y the eccentric thatthe same arrests therotarymovement of the eccentric in either I direction after the highest part of} thej eccentric has passed slightly beyond or below a dead center line drawnvlengthwise through the axis of the eccentricfand the front and rear thrust shoulders, thereby serving to positively hold 7 the yoke against longitudinal -movement while the eccentric is in either of these extrerne positions. This will be apparent upon an-examination of Figs. 1 and 2 in which Fig. 1 shows the eccentricengaging its-highest". part with the frontthrust shoulder. slighty below said dead center line and'its underside engaging with the stop shoulder,

in which position of the parts it is impossible to move'the yokeriby external pressure 1 applied: lengthwise to {the locking bolt so that the latter-at this time is securely held finitslockedor shot position. The. same is I I true when theeccentric is turned toits fullestextent in the'opposite direction in which 5 the highestjpa rt oft-its faceflis slightly below said dead center line and its'underside engages with the stop shoulder, in which posi tion of the parts the yoke isalso heldagainst movement by external 7 pressure applied lengthwise-to the'boltso that the latter is positively held in itsretracted position.

Although the movement of the-yoke may be efiectedsolely by operationof the eccentric shifted fully intoits rearmost position. The

preferred means for this purpose comprise two springs 21, 21 arranged within the easing above and below the guide shank and each engaging its inner end with the rear edgeof the yoke and its outer end with the innerside of the adjacent rear guide flange. By means of these springs this lock may be utilized as a spring catch so that by withdrawing or retracting the locking bolt upon turning the eccentric back slightly and then againreleasin'g the same the yoke and locking bolt will be again projected into their operative position by the springs 21. By this means this look may be utilized not only as a positive lock in which the bolt may be held either in its pr'ojectedor retracted position but may also be utilized "'asa spring catch. 7 a I Any suitable means" may be provided for pivotally mounting the eccentric on the cas ing but the meanswhich are shown in the drawings arepreferably designed to also formthe connection between the body and rear .wall'of the: casing so that these parts will not becomedismembered when the lock is not mounted. The preferred means for this purposewhich are shown in the drawings comprise a shaft having a flat sided central-part 22which engages with the correspondingly shaped opening 23 in'the eccentric, a round rear part 24: which turns in a bearing opening 25 in the rear wall of the easing, a round front part 26'which turns'in af bearing opening 27 in the front wall of the-casing, anda handle, fingerpiece'or button 28 arranged on the front end of the shaft outside of the front wall of the casing.

This handle and shaft are preferably con-' structed from a single piece of metal by casting or otherwise. As the round parts 24, '26 of the shaft are on opposite sides of the square central part which carries the eccentricthe latter is reliably mounted on the casing so that the same will not tip to one sidejand bind but-is always free to turn in one direction or the other upon manipulating the handle on the exterior of the casing for this purpose. The flat sided central part of this shaft issomewhat smaller than the front round part thereof and somewhat larger than the rear round part thereof which permits this shaft to be passed successively through the front wall of the easing, then through the eccentric and then through the rear wall of the casing for the purpose of assembling the parts and-still enable this shaft and the handle to be made of one piece. After the parts have been thus assembled the rearend of the shaft is upset 'so as to form a head 29 thereon which engages with the rear orouter side of the rear wall. ;By this means the body and rear wall of the casing are held together by reason of the handle of the shaft engaging with the outer side of the front'wall and the rear head thereof engaging with the outer side of the rear wall, thereby avoiding the necessity of providing other means for connecting these parts of the casing and confining the working parts within the same.

It will be apparent from the foregoing that this look consists of very few parts compared with locks which accomplish the,

. same purpose and that these parts are all simple and durable in construction, the same are not liable to get out of order and are also I capable of being produced economically so that this lock can be marketed at acomparacent to corresponding lower ends of both thrust shoulders, and a clearance spacebe-" tween the upper ends of said thrustshoulders, and arotatable eccentric mounted on-the casing and adapted to move through said 1 clearance space and to engage its highest part with either of said thrust shoulders for shifting the locking bolt into an openor closed position and also adapted at either end of its rotary movement to standwith its highest part slightly beyond a dead center line drawn through said'thrust shoulders and the axis of said eccentric and to engage with said stop shoulder at either end of its rotary movementfor locking said bolt either in its open or in its closed position. c

2. A lock comprising a casing, a yoke slidably. mounted on said casing and provided 7 with a locking bolt and with an, opening forming two end thrustshoulders which face each other, a stopshoulder arranged adj acent shoulders, and a clearance space between the upper ends of said thrust shoulders, a rd tatable eccentric mountedon the casing and adapted to move through said clearance space and to engage its highest, part with v either of said thrust shoulders for shifting the locking bolt into anopen or closed posi-' tion and also adapted ateither end of its rotary movement to stand with its highest part slightly beyond a dead centerline drawn through said thrust shoulders and the axis of said eccentric and to engage with, said stop shoulder at eitherend of its rotary movement for locking said bolt either in its ;open or inits closed position and a spring arranged in said casing and pressing constantly against said'bolt for moving the same in the direction in which the bolt is projected. c

a 3. A look comprising a casing having a body consisting ofa frontwall, longitudinal guideways projecting inwardly from oppositelongitudinal edges of said front wall,

fastening webs projecting outwardly fromthe inner edges of the guideways and each provided at its outer edge with an inwardly projecting marginal flange, and transverse guide flanges arranged" at opposite ends of the front wall, guideways, fastening webs and marginalffiangeaand a rear wall ar-,

ranged within the guide flanges'and marengaging" its longitudinal edges with said transverse" ends with Ea locking bolt and a ginal; flanges and engaging said fastening webs, ayoke arranged within the casing and guideways iand provided at; its opposite guide shank which are guided on said 1 guide flanges, and an eccentric rotatably gaging said yoke.

4. A. lock comprisingxa casing having a injthe-casing and having alocking-lbolt, an eccentric for operatively engaging said yoke for shifting the same and provided witha flat sided opening,fand means for turning said eccentric comprising a shaft having a flat sided central part engaging with the opening-of the eccentric, a round inner end turning in the bearing opening of the rear 'wall and a round front end turning in the to corresponding lower ends of both, thrust mounted on said casing and operatively enbearing opening of thefront wall, and a wall.

WILLIAM A. HYLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner oidll'atents, Washingtoml); G. 1 r c 1 

